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Itens para a visualização no momento 111-120 of 181
Roteamento geográfico para redes de sensores e atuadores sem fio em redes urbanas de comunicação
(Universidade Federal de Santa Maria, 2012-05-25)
Smart grids and smart utility networks are the next-generation utility networks that
intend to provide efficient control and management of utilities such as electricity, natural
gas, water and sewage. Communication ...
Pesquisa sobre o efeito de fenômenos solares no potencial energético solar-eólico
(Universidade Federal de Santa Maria, 2015-09-11)
This thesis analyzes the monthly data from historical series of the heat stroke
cycles, solar radiation and average wind speeds in the 1961 and 2008 period to
identify long-term inaccuracies in the location of both wind ...
Controle adaptativo robusto combinado com regulador linear quadr atico aplicado a condicionadores de energia
(Universidade Federal de Santa Maria, 2014-09-05)
This work proposes an algorithm that combines two control laws with di erent
compensation characteristics in order to obtain a robust and high performance control:
A Linear Quadratic Regulator aided by a Kalman lter or ...
Despacho econômico multiárea descentralizado considerando a participação de agregadores privados locais usando o método meta-heurístico
(Universidade Federal de Santa Maria, 2022-01-20)
The power systems operation has been mostly based on centralized solutions. In the recent time however, the power system economic models are changing because of the inclusion of new private participants in the system and ...
Microinversores baseados na topologia meia-ponte isolada alimentada em corrente
(Universidade Federal de Santa Maria, 2018-07-25)
The Microinverter is an inverter sized to meet individual solar panels, usually consisting of two stages, one DC-DC stage and another CC-AC stage. For the first stage of the DC link microinverter, the isolated current-fed ...
Controladores robustos adaptativos para um conversor trifásico a três fios conectado à rede com filtro LCL
(Universidade Federal de Santa Maria, 2021-01-15)
This work presents new robust adaptive control strategies of adaptive robust controllers, in discrete time, applied to the grid-injected currents control of a voltage-fed three-phase three-wires static converter connected ...
Fundamentos para concepção, controle e automação de uma planta armazenadora de energia utilizando hidrogênio
(Universidade Federal de Santa Maria, 2017-02-20)
Electrical generation with renewable sources is intermittent due to the characteristics of the primary energy (sun, wind, run of water, etc.). This feature can cause fluctuations and distortions on the voltage levels ...
Controle sem sensores mecânicos para gerador síncrono a ímã permanente
(Universidade Federal de Santa Maria, 2015-07-29)
This Thesis proposes sensorless vector control schemes that combine designed
observers in the discrete-time domain to estimate the rotor position and speed for a
permanent magnet synchronous generator of non-salient ...
Novo conjunto de indicadores de desempenho operacional para redes elétricas inteligentes por meio da Lógica fuzzy
(Universidade Federal de Santa Maria, 2020-08-14)
Operational performance analysis is a multidisciplinary tool that allows the engineering systems manager to control the quality of services provided, as needed. For this operational tool to be effective, it is necessary ...
Estudo e comparação de sistemas de acionamento para aplicações de alta potência e média tensão
(Universidade Federal de Santa Maria, 2010-08-24)
This Ph.D. Thesis proposes a comparison of modulation techniques, semiconductors devices technologies and topologies for multilevel inverters, in order to point out the multilevel drive system that presents the best ...